Multiple switch



xmms@ April 9,v 1929. J. s. BOHEN MULTIPLE SWITCH Filed March 22; 1927INVENTOR 706,/1/5 @Of/EN BY @4am/@SQL Mat/ ATTORNEY JOHN S. BOHEN, OF

mans TES PATENT FFlCE.'

SPRINGFIELD, VERMONT, ASSIGNOR 0F ONE-HALF T0 JOHN J.

COSTELLO, 0F PITTSFIELD, MASSACHUSETTS MULTIPLE SWITCH.

Application iled March 22, 1927. Serial-No. 177,450.

My invention relates to a multiple switch having contacts for severalcircuits, and it has particular reference to that class of suchv devicesthat are used for illumination and ignition.

One of the objects of the device is-to provide. a multiple switch thatis encased in a housing in .which the electrical ycontacts areconcealed', and the device operated by means of a knob that works in alongitudinal slot.

Another object of the invention is to provide a multiple switch in whichone or more circuits may be used, and'all circuits operated from acommon knob without interference Ywith or from the other circuits.

Figure 1 is a sectional plan view taken on the line 1-1 of Figure 2.

Figure 2 is an elevation view in part section.

Figure 3 is a sectional view of one of the blade `terminals and terminalplate.

Figure 4 is a side view of the segment contact.

Figure 5 is a front viewy of the segment contact and segment terminal.

Similar numerals of reference indicateA similar parts thruout theseveral views. Referring to the drawings indicates a terminal plate thatis inserted in the casing 1. The casing .1 is provided with a support 2secured thereto, and a semicircular support 3 is fastened to the casingsupport 2 by means of bolts that are inserted into the holes 16. Thepurpose of the casing support 2 and the semi-circular support 3 are toprovide the means whereby the switch may be fastened in position,andrftheswitch may be fastened in position byineans of the casingsupport 2, alone, or the semicircular support 3 may be lused 'inconnection with the casing support'2 to fasten the switch around an.object by 'using 3 as a clamp. l p

The terminal plate 7 is piovided'with two blade terminals 9, and a stud4 extends from each terminal, and an insulating bushing is placed overeach terminal stud to prevent the current :from leaking into theterminal plate 7. A segment terminal 10 is placed centrally between theblade terminals 9 and a terminal stud 4 extends from the segmentterminal, an insulating vbushing 3 is also placed over the segmentterminal 10 to prevent any leakave from the current into the terminalplate The terminal studs 4 are the semicircular support 7 provided withnuts 5 for making connections to an electrical circuit. The inside ofthe terminal plate 7 is provided with insulating material S to preventany leakage of the current into the terminal plate' 7.

A segment contact 11 is pivotally connected to the segment terminal 10,and the segment contact 11 is provided with a prokjection 21. A pin 17passes thru the projection 21 on the segment Vcontact lland is held inposition Vby ...means of the split washers 18, and the said pin is sodesigned that it may be rotated within the projection 21... A knob 12,which is composed of insu# latingmaterial, is secured to the-pin 17, andthe device is operated by means of this knob. contact blade 14 isrigidly secured to the pin 17 and rotates with the said pin.

One side of the casing 1 is provided with a terminal stud 20 that passesthru the casing `and thru an insulating bushing ,6, and the stud isconnected to the contact plate 13. The contact plate 13 consistsofiesilient inaterial and is turned over on the ends` as indicated bythev numeral 22, to allow a greater resiliency in the center of thecontact plate 13 ,when it is brought in contact with the contact blade14 which is causedI by operation of the knob 12. A casing insulation 23is placed around the inside of the casing, and the contact plate 13 isheld in contact with the casing insulation by means of the stud 20.Afsupport 21 is secured to the contact .plate 13 and extends to thebottom'of Y, the casing and is for the purpose of preventing the contactplate 13 from twisting or turning. The stud 2O is also provided with vconnection and complete the circuit the operator moves the knob eitherto `the right or lef't, as the case may be, aloncr the slot 15 and thiswill causethe segment cntact to turn on the in 19 and make contact withthe termi nal lade 9 as shown by the dotted lines of the segmentcontact. While the segmentV contact is in contact with the terminalblade 9, and it is desired to make contact with 'another circuit, allthat is necessary is tol turn the knob 12 and the contact blade 95 Theoperation of the device is as follows:

14 Will be brought in contact with the conport for said casing, aterminal plate at tact plate 13. If desired to disconnect the tached tothe inner side of the casing, a segment contact from the terminal blade9 plurality of terminals attached to the terthis can-be done by simplymoving the knob minal plate With terminal studs extending along thelongitudinal slot 15 and the contherefrom, a Contact segment pivotallyat- 25 tact blade 14 will slide along the contact tachedtooneof the saidterminals, a conplate 13 and still retain the circuit between tact platelof resilient material provided the contact plate 13 and the segmentterwith a terminal stud extending therefrom, min-al 10. If it is desiredto make connec'- an operating knob, provided with a con- 10 tion to theopposite terminal-blade 9, this tact blade attached to a pin extendingfrom 30 can be done by moving the knob 12 farther saidl knob, and saidpin rotatably attached along the slot 15 andthe segment Contact toprojection on the segment terminal 11 will be brought in Contact withthe opand operated to make various circuit conposite terminal blade 9and complete the nections in cooperation with the various 15 circuit.terminal connections by moving or turning 35 Having thus described myinvention what or moving and turning the said pin by means I claim asnew, and desire to secure by ofthe knob along or within the longitudinalLetters Patent, isz-v i slot in the casing. Y

A multiple switch comprising a casing' lin testimony whereof Iax mysignature. 20 provided with a longitudinal slot, a sup- JOHN S. BUHEN.

